Question

factroise
$x {}^{2} 4x - 21 \: what \: expression \: would \: be \: obtained \: when \: x { }^{2} + 4x - 21 \: is \: divided \: by \: ( x - 3)$
​

Answer 1

Step-by-step explanation:

the answer is -26

Answer 2

Answer:

x^2 +7x-3x-21

(x+7) (x-3) /(x-3)

so x+3 is the answer